JPH0627295A - Solidification of radioactive adsorbent - Google Patents
Solidification of radioactive adsorbentInfo
- Publication number
- JPH0627295A JPH0627295A JP18014192A JP18014192A JPH0627295A JP H0627295 A JPH0627295 A JP H0627295A JP 18014192 A JP18014192 A JP 18014192A JP 18014192 A JP18014192 A JP 18014192A JP H0627295 A JPH0627295 A JP H0627295A
- Authority
- JP
- Japan
- Prior art keywords
- radioactive
- solidifying agent
- adsorbent
- solidifying
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003463 adsorbent Substances 0.000 title claims abstract description 51
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 45
- 238000007711 solidification Methods 0.000 title claims abstract description 32
- 230000008023 solidification Effects 0.000 title claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 239000004568 cement Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002901 radioactive waste Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000941 radioactive substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000002925 low-level radioactive waste Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
(57)【要約】
【目的】放射性吸着剤の固化方法に係り、二次的な汚染
物質を発生しない固化方法を提供する。
【構成】 吸着処理後の放射性吸着剤をバスケットに充
填した状態のまま固化容器内に収納するとともに、該固
化容器内に流動性を有する固化剤を注入して、真空雰囲
気内において固化させるものであり、キャピラリー効果
を利用して放射性吸着剤の間隙に固化剤を浸透させ、か
つ、真空引きを行って放射性吸着剤の間隙の空気を排出
することにより固化剤の浸透を促進する。また、二次的
な汚染物質となるバスケットを固化体内に収納し放射性
吸着剤とともに固化させる。
(57) [Abstract] [Purpose] To provide a solidification method that does not generate secondary pollutants in relation to the solidification method of a radioactive adsorbent. [Structure] A radioactive adsorbent after adsorption treatment is stored in a solidifying container in a state of being filled in a basket, and a solidifying agent having fluidity is injected into the solidifying container to solidify in a vacuum atmosphere. Therefore, the solidifying agent is permeated into the gap of the radioactive adsorbent by utilizing the capillary effect, and the evacuation of the air in the gap of the radioactive adsorbent by vacuuming promotes the permeation of the solidifying agent. In addition, a basket, which is a secondary pollutant, is housed in the solidified body and solidified together with the radioactive adsorbent.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、放射性物質を吸着した
放射性吸着剤の固化方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for solidifying a radioactive adsorbent having a radioactive substance adsorbed thereon.
【０００２】[0002]
【従来の技術】一般に、原子力プラント関連施設におい
て発生する高レベル廃液は、無機吸着剤（例えば、ゼオ
ライト、チタン酸等）によって吸着処理させることによ
り、該廃液内に含有される放射能濃度の高い核種（例え
ばＣｓ、Ｓｒ等）を取り除いて、低レベル廃液とするこ
とができ、その後の処理・処分を容易に行うことができ
るようになる。2. Description of the Related Art Generally, a high level waste liquid generated in a facility related to a nuclear power plant is adsorbed by an inorganic adsorbent (for example, zeolite, titanic acid, etc.) to have a high radioactivity concentration in the waste liquid. The nuclide (for example, Cs, Sr, etc.) can be removed to form a low-level waste liquid, and the subsequent treatment / disposal can be easily performed.
【０００３】この場合、核種を含んだ放射性吸着剤は、
セメント固化等の固化処理を施すことにより固化剤の中
にとじ込めた状態とされ、さらに、放射線汚染を防止す
るために、セメント固化体の形態で放射性廃棄物貯蔵施
設に長期間の保管を行うことが計画されている。In this case, the radioactive adsorbent containing the nuclide is
It is kept in a solidifying agent by solidification treatment such as cement solidification, and it is stored in a radioactive solid waste storage facility for a long time in the form of cement solidified body to prevent radiation contamination. Is planned.
【０００４】従来、このような放射性吸着剤の固化方法
としては、まず、上下に金網等の透過性壁面を有する筒
状のバスケット内に吸着剤を充填した状態で、吸着剤処
理塔（以下、カラムという。）に設置し、該カラムおい
て放射性廃液を該吸着剤の周囲に挿通させることによ
り、吸着剤に核種を吸着させる。次いで、核種を吸着し
た放射性吸着剤をバスケットごとカラムから取り外し、
該バスケット内の放射性吸着剤を固化容器内に移す。そ
して、固化剤（例えば、セメントガラス）を添加して攪
拌または加振を実施することにより該固化剤と放射性吸
着剤とを混合して固化させる方法が考えられている。Conventionally, as a method for solidifying such a radioactive adsorbent, first, an adsorbent treatment tower (hereinafter, (Hereinafter referred to as a column), and the radioactive waste liquid is inserted around the adsorbent in the column to adsorb the nuclide to the adsorbent. Then, remove the radioactive adsorbent that adsorbed the nuclide from the column together with the basket,
The radioactive adsorbent in the basket is transferred into the solidification container. Then, a method of adding a solidifying agent (for example, cement glass) and performing stirring or vibration to mix the solidifying agent and the radioactive adsorbent to solidify is considered.
【０００５】[0005]
【発明が解決しようとする問題点】ところで、このよう
な固化方法が実施される作業環境は、多量の放射線が飛
来する作業環境であるため、その作業は遠隔操作によっ
て行われることになる。By the way, since the working environment in which such a solidifying method is carried out is a working environment in which a large amount of radiation comes in, the work is carried out by remote control.
【０００６】しかしながら、バスケット内から固化容器
内に放射性吸着剤を移す作業を遠隔操作によって行うこ
とは困難である。しかも、このようにして、放射性吸着
剤を固化容器内に移した後のバスケットは、高レベルの
放射性廃液によって汚染されているため、再利用を行う
場合には、洗浄処理等を施す必要があるとともに、その
場合に排出される洗浄廃液等の二次的な汚染物質を処理
しなければならず、また、バスケットを再利用しない場
合であっても、その汚染されたバスケットを処理しなけ
ればならないという問題があった。However, it is difficult to remotely transfer the radioactive adsorbent from the basket to the solidification container. Moreover, since the basket after the radioactive adsorbent has been transferred into the solidification container in this manner is contaminated with a high level of radioactive waste liquid, it is necessary to perform a cleaning process or the like when it is reused. At the same time, secondary pollutants such as cleaning waste liquid discharged in that case must be treated, and even if the basket is not reused, the contaminated basket must be treated. There was a problem.
【０００７】本発明は、上述した事情に鑑みてなされた
ものであって、二次的な汚染物質を発生しない放射性吸
着剤の固化方法を提供することを目的とするものであ
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method for solidifying a radioactive adsorbent which does not generate secondary pollutants.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、吸着処理後の放射性吸着剤をバスケット
に充填した状態のまま固化容器内に収納するとともに、
該固化容器内に流動性を有する固化剤を注入して、真空
雰囲気内において固化させる放射性吸着剤の固化方法を
提案している。In order to achieve the above object, the present invention is to store a radioactive adsorbent after adsorption treatment in a solidified container in a state of being filled in a basket, and
It proposes a method for solidifying a radioactive adsorbent in which a solidifying agent having fluidity is injected into the solidifying container and solidified in a vacuum atmosphere.
【０００９】[0009]
【作用】本発明に係る放射性吸着剤の固化方法による
と、吸着処理によって放射性物質を吸着した放射性吸着
剤が充填されているバスケットを固化容器内に収納し、
流動性を有する固化剤を注入することにより、該固化剤
がバスケットの壁面を透過して放射性吸着剤に接触させ
られる。すると、固化剤は、放射性吸着剤の間に形成さ
れた微小な相互間隙にキャピラリー効果によって浸透す
るが、さらに、固化容器内が真空状態とされることによ
り、放射性吸着剤の相互間隙に封入状態の空気が固化容
器の外部に排出され、放射性吸着剤の相互間隙への固化
剤の侵入が促進される。そして、この真空状態に保持さ
れることにより、固化剤が放射性吸着剤の相互間隙に完
全に浸透し該放射性吸着剤を閉じ込めた状態で凝結・硬
化させられることになる。According to the method for solidifying a radioactive adsorbent according to the present invention, a basket filled with a radioactive adsorbent that has adsorbed a radioactive substance by an adsorption treatment is housed in a solidification container,
By injecting the fluidizing solidifying agent, the solidifying agent permeates the wall surface of the basket and is brought into contact with the radioactive adsorbent. Then, the solidifying agent penetrates into the minute mutual gaps formed between the radioactive adsorbents due to the capillary effect. Furthermore, the solidification container is evacuated, so that it is sealed in the mutual gaps between the radioactive adsorbents. The air is discharged to the outside of the solidification container, and the infiltration of the solidifying agent into the interstices of the radioactive adsorbent is promoted. Then, by being maintained in this vacuum state, the solidifying agent is completely penetrated into the mutual gaps of the radioactive adsorbent, and the radioactive adsorbent is confined and hardened in a confined state.
【００１０】[0010]
【実施例】以下、本発明に係る放射性吸着剤の固化方法
の一実施例について、図１を参照して説明する。図にお
いて、符号１は真空容器、２は固化容器、３はバスケッ
ト、４は吸着剤、５は固化剤、６は真空ポンプ、７は真
空引きライン、８は固化剤貯留槽、９は固化剤供給ポン
プ、１０は固化剤供給管、１１は切換弁、１２は固化剤
返送管、１３は攪拌機である。EXAMPLE An example of a method for solidifying a radioactive adsorbent according to the present invention will be described below with reference to FIG. In the figure, reference numeral 1 is a vacuum container, 2 is a solidification container, 3 is a basket, 4 is an adsorbent, 5 is a solidifying agent, 6 is a vacuum pump, 7 is a vacuum line, 8 is a solidifying agent storage tank, and 9 is a solidifying agent. A supply pump, 10 is a solidifying agent supply pipe, 11 is a switching valve, 12 is a solidifying agent return pipe, and 13 is a stirrer.
【００１１】図１は、放射性吸着剤の固化処理を行う装
置の概略図を示している。該図１に示すバスケット３に
は、放射性濃度の高い核種を吸着した放射性吸着剤４が
充填されている。このバスケット３は、吸着剤を充填し
た状態で前記カラム（図示略）に設置され、該吸着剤の
周囲に放射性廃液を透過させることによって核種を吸着
剤に吸着させるものである。FIG. 1 shows a schematic view of an apparatus for carrying out a solidification treatment of a radioactive adsorbent. The basket 3 shown in FIG. 1 is filled with a radioactive adsorbent 4 that adsorbs a nuclide having a high radioactive concentration. The basket 3 is installed in the column (not shown) filled with an adsorbent, and permeates a radioactive waste liquid around the adsorbent to adsorb the nuclide to the adsorbent.
【００１２】したがって、該バスケット３上下の壁面３
ａ・３ｂは、カラムに設置されたときに放射性廃液がバ
スケット３内を挿通するように、金網（１００〜１５０
メッシュ）あるいはパンチングメタル（φ５〜６）等に
よって形成されており、該壁面３ａ・３ｂによってバス
ケット３内部に配される放射性吸着剤４が外部にこぼれ
ないように支持されるようになっている。また、バスケ
ット３上部には、フック３ｃが配設されており、該フッ
ク３ｃを利用して、遠隔操作によって吊持・搬送を行
い、図１に示すように、固化容器２内に配置されるよう
になっている。Therefore, the upper and lower wall surfaces 3 of the basket 3
a and 3b are wire mesh (100 to 150) so that the radioactive waste liquid is inserted into the basket 3 when installed in the column.
It is formed of a mesh) or punching metal (φ5 to 6) or the like, and the wall surfaces 3a and 3b support the radioactive adsorbent 4 arranged inside the basket 3 so as not to spill outside. Further, a hook 3c is arranged on the upper portion of the basket 3, and the hook 3c is used to suspend and convey by remote control, and is arranged in the solidification container 2 as shown in FIG. It is like this.
【００１３】該固化容器２内の底面には、バスケット３
を載置し、かつ、該バスケット３の下方に空間を形成す
る架台２ａが配設されており、該架台２ａの上にバスケ
ット３を載置することにより、バスケット３が固化容器
２の内壁面との間に間隔を空け、かつ、そのほぼ中央位
置に配置されるようになっている。A basket 3 is provided on the bottom surface of the solidification container 2.
And a pedestal 2a that forms a space below the basket 3 is placed, and by placing the basket 3 on the pedestal 2a, the basket 3 becomes an inner wall surface of the solidification container 2. There is a space between and, and it is arranged to be located in the approximate center position.
【００１４】次に、このように配置された固化容器２内
に、流動性を有する固化剤５（例えば珪酸ソーダを主成
分としたセメントガラス）を注入する。この注入装置と
しては、例えば、図１に示すように、後述する真空容器
の外部に配される固化剤貯留槽８と、該固化剤貯留槽８
から真空容器を貫通して固化容器２の上方に供給口を配
する固化剤供給管９と、該固化剤供給管９に固化剤を流
通させる固化剤供給ポンプ１０と、固化剤供給管９に切
換弁１１を介して接続され固化剤供給管９を流通する固
化剤を固化剤貯留槽８に返送する固化剤返送管１２とを
配設する。この注入装置において、固化容器２への固化
剤の供給を停止するときには、切換弁１１を作動させて
固化剤返送管１２に固化剤を流通させることにより、固
化剤供給ポンプ１０内で固化剤を停止させることなく、
連続的な注入作業を行うことができるとともに、固化剤
貯留槽８内の固化剤を循環させて、固化剤を長時間流動
状態に保持することができるようになっている。Next, a fluidizing solidifying agent 5 (for example, cement glass containing sodium silicate as a main component) is poured into the solidifying container 2 thus arranged. As the injection device, for example, as shown in FIG. 1, a solidifying agent storage tank 8 arranged outside a vacuum container described later and the solidifying agent storage tank 8 are provided.
To the solidification agent supply pipe 9 having a supply port disposed above the solidification container 2 through the vacuum container, a solidification agent supply pump 10 for distributing the solidification agent to the solidification agent supply pipe 9, and a solidification agent supply pipe 9. A solidifying agent returning pipe 12 for returning the solidifying agent flowing through the solidifying agent supply pipe 9 connected through the switching valve 11 to the solidifying agent storage tank 8 is provided. In this injection device, when the supply of the solidifying agent to the solidifying container 2 is stopped, the switching valve 11 is operated to allow the solidifying agent to flow through the solidifying agent return pipe 12, so that the solidifying agent is supplied in the solidifying agent supply pump 10. Without stopping
A continuous injection operation can be performed, and the solidifying agent in the solidifying agent storage tank 8 can be circulated to keep the solidifying agent in a fluidized state for a long time.
【００１５】そして、このように構成された注入装置に
よって固化剤供給ポンプ１０を作動して固化剤貯留槽８
から固化容器２内に固化剤を供給することにより、前記
バスケット３を該固化剤５内に沈没状態とする。これに
より、放射性吸着剤４の間に形成された微小な相互間隙
には、キャピラリー効果によって固化剤５が浸透させら
れることになる。The solidifying agent storage tank 8 is operated by operating the solidifying agent supply pump 10 by the injection device thus constructed.
By supplying a solidifying agent into the solidifying container 2, the basket 3 is set in the solidifying agent 5 in a sinking state. As a result, the solidifying agent 5 is made to penetrate into the minute mutual gaps formed between the radioactive adsorbents 4 by the capillary effect.
【００１６】ここで、放射性吸着剤４の相互間隙に空気
が閉じ込められることが考えられ、この場合にあって
は、キャピラリー効果による固化剤５の浸透速度が極め
て遅くなるので、該固化剤５が浸透の途中で固化してし
まうことが考えられる。Here, it is conceivable that air is trapped in the mutual gaps between the radioactive adsorbents 4. In this case, the permeation rate of the solidifying agent 5 due to the capillary effect becomes extremely slow, so that the solidifying agent 5 is It is conceivable that it solidifies during penetration.
【００１７】そこで、本実施例においては、固化容器２
の外側に真空容器１を配設し、該真空容器１の蓋１ａを
閉鎖して、前記固化容器２を密閉状態とするとともに、
真空ポンプ６を作動して、該真空ポンプ６に接続された
真空引きライン７を通じて該真空容器１内の空気を外部
に排出することにより、放射性吸着剤４の相互間隙に閉
じ込められた空気をバスケット３の外部に排出する。こ
れによって、固化剤５の浸透速度が向上され、放射性吸
着剤４の相互間隙に空洞を生じることなく完全に浸透す
ることになる。Therefore, in the present embodiment, the solidification container 2
A vacuum container 1 is provided outside the container, the lid 1a of the vacuum container 1 is closed, and the solidification container 2 is sealed.
By operating the vacuum pump 6 and discharging the air in the vacuum container 1 to the outside through a vacuuming line 7 connected to the vacuum pump 6, the air trapped in the mutual gap of the radioactive adsorbent 4 is basketd. Discharge to the outside of 3. As a result, the permeation rate of the solidifying agent 5 is improved, and the radioactive adsorbents 4 are completely permeated without forming voids in the mutual gaps.
【００１８】そして、この状態にて、放置状態として固
化剤５を凝結させ、さらに、硬化させることにより、固
化剤５によって固化容器２内に放射性吸着剤４を閉じ込
めた放射性吸着剤の固化体が形成されることになる。Then, in this state, the solidifying agent 5 is left to stand and is solidified, and further cured, so that a solidified body of the radioactive adsorbent in which the radioactive adsorbent 4 is enclosed in the solidifying container 2 by the solidifying agent 5 is obtained. Will be formed.
【００１９】[0019]
【発明の効果】以上、説明したように、本発明に係る放
射性吸着剤の固化方法は、吸着処理後の放射性吸着剤を
バスケットに充填した状態のまま固化容器内に収納する
とともに、該固化容器内に流動性を有する固化剤を注入
して、真空雰囲気内において固化させるものであるの
で、、以下の効果を奏する。 （１） 放射性吸着剤をバスケットごと固化容器内に収
納して固化するので、遠隔操作を搬送のみの簡単なもの
とすることができる。 （２） バスケットを固化容器内に収納するので、二次
的な汚染物質の発生を防止することができる。 （３） 固化容器内を真空雰囲気とすることにより、放
射性吸着剤の間隙に固化剤を浸透させるので、攪拌機等
の付帯設備を省略することができる。 （４） 固化容器内を真空雰囲気とすることにより、固
化剤の浸透を促進するので、固化体内部に空洞を形成す
ることなく確実に凝結硬化させることができる。As described above, according to the method for solidifying a radioactive adsorbent according to the present invention, the radioactive adsorbent after the adsorption treatment is stored in the solidification container in a state of being filled in the basket, and the solidification container is solidified. Since a solidifying agent having fluidity is injected into the inside to solidify in a vacuum atmosphere, the following effects are obtained. (1) Since the radioactive adsorbent is stored together with the basket in the solidification container and solidified, the remote operation can be simplified by only carrying. (2) Since the basket is stored in the solidification container, it is possible to prevent the generation of secondary pollutants. (3) Since the solidifying agent is permeated into the gaps between the radioactive adsorbents by creating a vacuum atmosphere in the solidifying container, auxiliary equipment such as a stirrer can be omitted. (4) By making the solidification container have a vacuum atmosphere, the penetration of the solidifying agent is promoted, so that the solidification can be surely performed without the formation of voids inside the solidified body.
【図１】本発明に係る放射性吸着剤の固化方法の一実施
例を示す断面図である。FIG. 1 is a cross-sectional view showing an embodiment of a method for solidifying a radioactive adsorbent according to the present invention.
１ 真空容器 １ａ 蓋 ２ 固化容器 ２ａ 架台 ３ バスケット ３ａ・３ｂ 壁面 ３ｃ フック ４ 放射性吸着剤 ５ 固化剤 ６ 真空ポンプ ７ 真空引きライン ８ 固化剤貯留槽 ９ 固化剤供給管 １０ 固化剤供給ポンプ １１ 切換弁 １２ 固化剤返送管 １３ 攪拌機 DESCRIPTION OF SYMBOLS 1 vacuum container 1a lid 2 solidification container 2a mount 3 basket 3a, 3b wall surface 3c hook 4 radioactive adsorbent 5 solidifying agent 6 vacuum pump 7 evacuation line 8 solidifying agent storage tank 9 solidifying agent supply pipe 10 solidifying agent supply pump 11 switching valve 12 Solidifying agent return pipe 13 Stirrer
Claims (1)
に充填した状態のまま固化容器内に収納するとともに、
該固化容器内に流動性を有する固化剤を注入して、真空
雰囲気内において固化させることを特徴とする放射性吸
着剤の固化方法。1. A radioactive adsorbent after adsorption treatment is stored in a solidification container in a state of being filled in a basket, and
A method for solidifying a radioactive adsorbent, which comprises injecting a fluidizing solidifying agent into the solidifying container to solidify in a vacuum atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18014192A JPH0627295A (en) | 1992-07-07 | 1992-07-07 | Solidification of radioactive adsorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18014192A JPH0627295A (en) | 1992-07-07 | 1992-07-07 | Solidification of radioactive adsorbent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0627295A true JPH0627295A (en) | 1994-02-04 |
Family
ID=16078129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18014192A Withdrawn JPH0627295A (en) | 1992-07-07 | 1992-07-07 | Solidification of radioactive adsorbent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101146176B1 (en) * | 2010-04-27 | 2012-05-24 | 주식회사 소명특수건업 | Solidification method and apparatus for radioactive waste materials |
| JP2012233766A (en) * | 2011-04-28 | 2012-11-29 | Ohbayashi Corp | Method for removing radioactive substance in radioactive effluent and system for removing radioactive substance in radioactive effluent |
| JP2013117450A (en) * | 2011-12-02 | 2013-06-13 | Daiki Ataka Engineering Co Ltd | Method for removing radioactive cesium from aqueous solution containing radioactive cesium |
-
1992
- 1992-07-07 JP JP18014192A patent/JPH0627295A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101146176B1 (en) * | 2010-04-27 | 2012-05-24 | 주식회사 소명특수건업 | Solidification method and apparatus for radioactive waste materials |
| JP2012233766A (en) * | 2011-04-28 | 2012-11-29 | Ohbayashi Corp | Method for removing radioactive substance in radioactive effluent and system for removing radioactive substance in radioactive effluent |
| JP2013117450A (en) * | 2011-12-02 | 2013-06-13 | Daiki Ataka Engineering Co Ltd | Method for removing radioactive cesium from aqueous solution containing radioactive cesium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991005 |